Nailing-machine



(No Model.)

6 Sheets-Sheet 1 J. E. K IMBALL, NAILING MACHINE.

Patented Nov. 19, 1889.

(No Model.)

6 Sheets-Sheet 2.

J. E. KIMBALL. NAILING MACHINE.

No. 415,672. Patented Nov, 19, 1889.

N. PETERS, Plwwulho n h r. W-llhingtnm D. C.

6 Sheets-Sheet 3.

(No Modem 7 J. E. KIMBALL.

SAILING MACHINE.

No. 415,672. Patented Nov. 19, 1889.

1 7 I aw d N. P'Efins. Fhuwumn m nur, Wauhlnglnn. ac,

6 Sheets-Sheet .5.

(No Model.)

J. E. KIMBALL. NAILING MACHINE.

No. 415,672. Patented Nov. 19, 1889.

UNITED STATES PATENT OFFICE.

JOSEPH E. KIMBALL, OF ABINGTON, ASSIGNOR, BY MESNE ASSIGNMENTS, TOEPHRAIM L. IRES, OFv MILFORD, MASSACHUSETTS.

NAlLlMG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 415,672, dated November19, 1889.

Application filed September 26,- 1888. Serial No. 286,450. (No model.)

To all whom, it may concern:

Be it known that I, JOSEPH E. KIMBALL, of

Abington, in the county of Plymouth and State of Massachusetts, haveinvented a new and useful Nailing-Machine, of which the following is aspecification,reference being had to the accompanying drawings, in whichFigure 1 is a side elevation of a machine embodying my invention, a partbeing broken IO away for greater clearness. Fig. 2 is a plan with a partbroken away for greater clearness. Fig. 3 is a view, partly in section,on line 3 of Fig. 1. Fig.4 is a front elevation. Fig. 5 is a view,partly in section, on line 5 5 of Fig. 1, looking to the right. Fig. 6is a sectional view on line 6 G of Fig. 3, and Figs. 7

and 8 are views more clearly illustrating the cutter and carrier throatand rest explained below.

The main feature of myinvention is an improved machine which severs afastening from a coil of wire, carries it under a driver, and over anawl-hole made in the stock by the awl; and the main novelty of my im- 25 proved machine is the combination of asliding carriage which carriesthe awl with the mechanisms for feeding the wire, cutting off andcarrying the fastening, driving the fast ening, and supporting the stockinto which 0 the fastening is to be driven.

Another feature of my invention relates to the wire-feed mechanism, andconsists in using nippers which are moved positively during the firstpart of their motion to feed the wire, but by a spring during the latterpart of their feeding motion. This isa practical improvement on thisclass of machines, as it enables thespeed to be increased withoutimpairing the accuracy of the feed.

A third feature of my invention consists in .giving an endwise motion tothe throat or tube which supports the fastening when struck by thedriver, the object being to cause the lower end of this reciprocatingthroat to extend through the support, against which the upper surface ofthe work is pressed by the main work support, (which for bottoming shoesshould be the wellknown rotating horn,) and thereby bring the lower endof the throat close to or in contact with the upper surface of the work.XVhile this is of a good deal of practical importance in work where theouter ends of the fastenings are flush with the sole, it is of stillgreater importance where the fastenings are driven in a channel orgroove formed in the sole.

In that form of my machine shown in the drawings the main shaft Acarries the cam a for actuating the shoe-supporting horn, cam a foractuating the shoe-feeding mechanism, and cams a a for actuating thewire-feeding mechanism, and also the cam a, which lifts the driver andaids in operating the awl-bar. The main shaft also carries the beveledgear a, through which a gear a on shaft B is driven. Shaft B carries thecams b, b, and IF, which operate the cutters for forming the point andfor severing and carrying the fastening. The sliding head D is mountedupon ways (I, which are fast to the frame of the machine. This slidinghead D receives its 1110- tions from the cam a through the rock-shaft (Zand its arms d d, the arm d being connected by link d to the slidinghead D. The awl-bar F is mounted in ways in the sliding head D, and abracket f from the end of the awl-bar carries the awl f. The awl-barreceives its up and down motions from the driver-cam a through the arm fand link f the arm having a groove on its inner face in which a studfast to the driver-cam a proj ects, as shown in dotted lines in Fig. 4,and

its sidewise movements from the sliding head D.

The driver-bar G is raised by the drivercam a a portion of thedriver-cam engaging a stud 3 on bar G, and is thrown down by spring g.The ways of the driver-bar G and the supports for the spring g areattached to the frame of the machine, as will be readily understood byall skilled in the art.

The horn or work-support H is the usual revolving shoe supporting horn,too well known to require description. This horn is supported by the rodh, which passes through ears h on the frame of the machine. This rod his connected to the treadle h2 in the usual way. The horn H is forced upby spring 7L3 and forced down by lever 71. the lever be ing operated byrod 7r, rocker-lever h, and

cam a. l

The wire is fed b the reei arocatin ni ers J J, the jaw J being closedby the surface cam a and opened by the spring 7", as will be readilyunderstood by reference to Fig. 5, and the wire is fed by the nippers JJ into proper relation to the cutters j which form the end of the wireinto the shape of a wedge by slicing off two segments, one from eachside of the wire, the wire being held in the die 7' by a clamp 4 againsta wall 5 of the guide 6, as more fully described in my pendingapplication, Serial No. 108,473, filed J une 12, 1885. After the pointis thus partially formed by the cutters the wire is fed by means of thecam a a roll on arm 7' which is fast to slide J, entering the groove incam a until the partially-formed point is brought into proper relationwith the cutters 8, carried by carrier 7' and the die 0, carried bycarrierj. The cutter-carrier 7' and die-can rier are actuated bylevcr'sfflj' through the cross-head j which is actuated by camv I)through slidej, to which cross-headj is fast, the cross-head beingreciprocated by cam I). These cutters andnieans for actuating them arealso described in my pending application above mentioned. This finishesthe point, and when the clamp a has been moved back by the furtherrotation of cam Z) (see Fig. 6) the nippers J J are thrown down by thespring J 2 until the projection j is arrested by the stop 71 which is abracket fast to the rod b of horn H, and the position of the bracket 7Ldetermines the length of the fastening, for the cam a is positive inboth directions until after the point is fully formed, so that thespring J 2 has practically nothing to do with the feed of the wire untilafter the point is fully formed, but is put away, as will be clear fromFig. 5, leaving the nippers J J wholly under the control of spring J 2in making the final feed of the wire. the final feed of the wire alength sufficient to form the fastening (determined by the position ofthe bracket or stop if) is fed into the cutter and carrier K, which isthen thrown forward by the cam I1 and in its forward motion its beveledunder side 10 strikes upon the upper end of the reciprocating throat ornail-tube d and forces it into contact with the sole of the shoe, theshoe being then pressed up by the horn H and the upper surface of thesole or work resting against the rest L.

The combination of the work-support and a rest (hereinafter explained)with the wirefeed by means of the stops it and j, or their equivalents,is new with me and one feature of my invention, and is a substantial improvement on the other constructions known to me for feeding the wire adistance depending on the position of the work-support or horn.

One of the most important features of my in vention is the combinationof the work-rest L and driving mechanism with the reciprocating throator nail-tube d above described, the practical importance of thisconstruction lying in the fact that the throat is pressed During downthrough the hole in the restagainst the oppos d surface of the work (thetread surface of a sole or the bottom of a channel groove, for example)when the fastening is driven, so that the fastening is prevented fromcrippling.

The operation is as follows: Starting with the driver down, as in Fig..4, the end of the wire will be in proper relation with the first pairof cutters 7' 7' and the segmental slices will then have been cut offand the point partially formed, the wire being held by the nip pers J J.As the driver-cam a takes hold of the driver-bar G to move it up againstthe force of spring g, the nippers J J are moved down by cam (t -tlldparts connecting the cam and nippers to bring the wire to its secondposition, and the cutter 8, carried by carrier 7, operates upon it, andduring the upward motion of driver-bar G the awl-bar F ismoved down andthe awl caused to penetrate the sole of the shoe held between the uppersurface of horn H and the under surface of rest L. The horn is thendepressed by the lever 7L and its connections, so that the shoe may befed by the motion of sliding head D, in which the awl-bar F ismounted,as explained above, the rest L having a passage Z, through whichthe awl moves during the feed of the stock. As soon as the driverhasrisen far enough to clear the throat through the carrier K, carrier Kis moved back, releasing the reciprocating throat (Z (secured to an armof sliding head D,) which is cleared from the rest L (through which itextends when depressed by the carrier K) by the spring (Z and the head Dis moved on its ways (1 to bring the awl f into proper relation with therest L and driver. The lower part of the throat (I is beveled at 12 andthe upper surface of the rest L beveled at 11, (see Fig. 8,) so that themotion of head D will itself cause the reciprocating throat d to risefree from rest L, even if its spring (1 should fail to lift it. Thisconstruction is also a feature of my invention. XVhen the carrier K hasits throat brought in line with the wire, the nippers are thrown down bytheir spring J the horn II having in the meantime been released from thecontrol of lever 71 and been thrown up by its spring until the sole iscompressed be tween the upper surface of the horn H and the undersurface of the rest L. As soon as the shoe is thus fed, and while thehorn is rising to clamp the shoe between. the horn and the rest, theawl-bar F is lifted, withdrawing the awl, and as soon as the, awl iswithdrawn the head D is moved back to its position shown in Fig. 4,bringing the reciprocating throat d in line with the driver and over theawl hole. The carrier K is then thrown forward, severing-a fastening anddepressing the reciprocating throat d until its lower end projectsthrough the rest L and comes into contact with the sole of the shoe. Thedriver-bar G is then released and the fastening driven. (See Fig. 7.)After the the nippei's close upon the Wire as soon as the nippers havepassed over the wire the proper distance, when the jaw J is closed bythe spring j and the wire is lifted by the upward motion of the nippersuntil its end is brought in proper relation with the first pair ofcutters.

It will be plain that the various features of my invention may be usedseparately, and also that the cutters described are necessary only whenthe peculiar point described is required. A nail provided with thispoint was patented to me in Patent No. 386,435, July 17, 1888.

\Vhat I claim is 1. In combination, the sliding head-awl, awl-bar,driver, driver-bar, shoe-support, and wire-feeding mechanism, with acutter and carrier, and mechanism, substantially such as is described,for reciprocating the cutter and carrier between its position with itsthroat in line with the wire and its position with its throat in linewith the driver and over the hole in the work made by the awl, allarranged and operating substantially as described.

2. In a wire-feeding mechanism of a nailing-machine, nippers J J, cam aand spring J combined'and operating substantially as described.

In a nailing-machine, throat (1 in combination with i'nechanism,substantially such as described, for moving the throat endwise towardand from the work-rest L of the nailing-machine, all substantially asand for the purpose specified.

4. In a nailing-machine, in combination, work-support H, rest L, andthroat (P, with devices, substantially snch as described, for movingthroat (Z endwise, substantially as described.

5. In a nailing-machine, the combination of the reciprocating cutter andcarrier K, with the reciprocating nail-tube (1 the cutter and carrierbeing beveled at 10, all substantially as described.

6. In a nailing-machine, the combination of sliding head D,reciprocating throat (Z and rest L, having a cam-surface 11,substantially as and for the purpose set forth.

'7.- In anipper-feeding mechanism of a nailing-machine, the'cam a whosegroove is shaped as specified, in combination with nippers J J andspring J the cam moving the nippers positively during a portion of eachrevolution of the cam and the spring moving the nippers during the restof the revolution of the cam, all substantially as described.

8. The combination of a work-support and a work-rest, with wire-feedmechanism, and two members of a stop, one member carried by thework-support and the other by the Wire-feed mechanism, whereby thedistance between the work-support and the rest determines the length ofwire fed, all substantially as described.

JOSEPH E. KIMBALL.

Witnesses:

J. E. MAYNADIER, JOHN R. Snow.

